VENIT, E.P.; Duke University: Interzooidal connection predicts division of labor in colonial marine invertebrates Life is organized as a structural hierarchy manifesting division of labor among elements at each level. The evolutionary processes by which this structural hierarchy formed are not well understood. This study shows that the type of inter-zooidal connections within a marine […]
sessions: Session 40
Evolutionary morphology of the orbitotemporal region in Archosauria
HOLLIDAY, CM*; WITMER, LM; Ohio Univ: Evolutionary morphology of the orbitotemporal region in Archosauria The orbitotemporal region is a structurally complex, functionally important, and phylogenetically informative cephalic space built by elements of the palate and braincase which includes trigeminal nerves, adductor muscles, and other topologically conservative structures. However, little is known about the region�s evolution […]
Corbulid bivalve phylogeny and the facilitation of ecosystem invasion
ARONOWSKY, A.*; ANDERSON, L.C.; Louisiana State University; Louisiana State University: Corbulid bivalve phylogeny and the facilitation of ecosystem invasion The bivalve family Corbulidae includes about 35 nominal genera of which 15 are extant. Although corbulids are often overlooked in malacologic and paleontologic collections, in part because of their diminutive size, the family is of particular […]
Phenotypic effects of the mighty mini-muscle allele in a large HR x C57Bl6J backcross
Meeting Abstract 40.5 Jan. 6 Phenotypic effects of the “mighty mini-muscle” allele in a large HR x C57Bl/6J backcross HANNON, R,M*; KELLY, S,A; MIDDLETON, K,M; KOLB, E,M; POMP, D; GARLAND JR., T; Univ. of California, Riverside; Univ. of California, Riverside; Univ. of California, Riverside; Univ. of California, Riverside; Univ. of North Carolina, Chappel Hill; Univ. of California, […]
Patterning domains in the vertebrate mesoderm and the generation of morphological variation
Meeting Abstract 40.2 Jan. 6 Patterning domains in the vertebrate mesoderm and the generation of morphological variation. BURKE, A.C.*; DURLAND, J.L.; SFERLAZZO, M; Wesleyan University, Middletown, CT; Wesleyan University, Middletown, CT; Wesleyan University, Middletown, CT acburke@wesleyan.edu The body plan of vertebrates comprises an axial system of a cranium and segmental vertebrae and ribs. In jawed vertebrates the […]
Hox genes and paired appendages Paddlefish put a new spin on the fin
Meeting Abstract 40.4 Jan. 6 Hox genes and paired appendages: Paddlefish put a new spin on the fin. DAVIS, M.C.*; DAHN, R.D.; SHUBIN, N.H.; Univ. of Chicago; Univ. of Chicago; Univ. of Chicago marcusd@uchicago.edu Hox genes play an essential role in the development of vertebrate fins and limbs. During early appendage development in zebrafish and tetrapod (chick, […]
Hedgehog signaling in differentiation, growth, and maintenance of craniofacial features during larval development in zebrafish
Meeting Abstract 40.1 Jan. 6 Hedgehog signaling in differentiation, growth, and maintenance of craniofacial features during larval development in zebrafish. HERNANDEZ, L.P.; George Washington University, Washington, DC phernand@gwu.edu Hedgehog signaling has been shown to play an important role in proper craniofacial development. While the role of this signaling pathway in early embryonic development has been well documented […]
Detecting the early skeletal anlagen of the direct-developing frog Eleutherodacylus coqui through gene expression
Meeting Abstract 40.3 Jan. 6 Detecting the early skeletal anlagen of the direct-developing frog Eleutherodacylus coqui through gene expression KERNEY, Ryan; Harvard University, Cambridge, MA kerney@fas.harvard.edu Anurans exhibit a wide range of life history variation that often coincides with developmental diversity. The most dramatic departure from the typical biphasic lifestyle is direct development, where the free-living tadpole […]
Rewriting the Motor Code to a Muscle in a Running Insect Alters Function from Energy Absorption to Production
Meeting Abstract 40.2 Friday, Jan. 4 Rewriting the Motor Code to a Muscle in a Running Insect Alters Function from Energy Absorption to Production SPONBERG, S*; LIBBY, T; FULL, RJ; Univ. of CA, Berkeley sponberg@berkeley.edu A mechanistic understanding of neural feedback in a locomoting organism requires linking the functional response of individual muscles to changes in body […]
Intrinsic and neural contributions to muscular control of stable running in the guinea fowl (Numida meleagris)
Meeting Abstract 40.1 Friday, Jan. 4 Intrinsic and neural contributions to muscular control of stable running in the guinea fowl (Numida meleagris) DALEY, M.A.; University of Michigan mdaley@umich.edu Terrestrial animals move through complex environments with awe-inspiring agility and dynamic stability. Yet, little is known about muscle dynamics and neuromuscular control in rapid non-steady locomotion. Recent studies of […]